Answer:

Explanation:
In an uniformly accelerated circular motion, the angle traveled by the object is given by:

Here
is the final angular speed,
is the initial angular speed and t is the time of the motion. Replacing the given values:

Because there is no record of all things. As we have partially unknow information, it can never be held as a fact.
Answer:
3000J
Explanation:
The gravitational energy for any object is given by E=mgh
where m is mass, g is gravitational field strength anf h is height above ground
Explanation:
Solids have a definite shape and definite volume.